<template>
  <div class="echarts-wrapper">
    <div id="main" />
  </div>
</template>
<script>
import echarts from 'echarts'
export default {
  props: {
    option: {
      type: Object,
      default: () => ({
        title: {
          text: 'ECharts 入门示例'
        },
        tooltip: {},
        legend: {
          data: ['销量']
        },
        xAxis: {
          data: ['衬衫', '羊毛衫', '雪纺衫', '裤子', '高跟鞋', '袜子']
        },
        yAxis: {},
        series: [
          {
            name: '销量',
            type: 'bar',
            data: [5, 20, 36, 10, 10, 20]
          }
        ]
      })
    }
  },
  watch: {
    option: {
      deep: true,
      handler(newVal) {
        this.initEcharts(newVal)
      }
    }
  },
  mounted() {
    this.initEcharts(this.option)
  },
  methods: {
    initEcharts(option) {
      const myChart = echarts.init(document.getElementById('main'))
      // 使用刚指定的配置项和数据显示图表。
      myChart.setOption(option)
    }
  }
}
</script>
<style lang="scss" scoped>
.echarts-wrapper {
  width: 100%;
  height: 100%;
  overflow: hidden;
  #main {
    width: 100%;
    height: 100%;
  }
}
</style>
